28525064603 has 16 divisors (see below), whose sum is σ = 33420086784. Its totient is φ = 23835935040.

The previous prime is 28525064599. The next prime is 28525064647. The reversal of 28525064603 is 30646052582.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28525064603 - 2² = 28525064599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (28525064003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355976 + ... + 428682.

It is an arithmetic number, because the mean of its divisors is an integer number (2088755424).

Almost surely, 2^28525064603 is an apocalyptic number.

28525064603 is a deficient number, since it is larger than the sum of its proper divisors (4895022181).

28525064603 is a wasteful number, since it uses less digits than its factorization.

28525064603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74122.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 28525064603 in words is "twenty-eight billion, five hundred twenty-five million, sixty-four thousand, six hundred three".